Description

(E)-4,4'-Dichloroazobenzene is a high-purity, light-sensitive organic compound belonging to the azobenzene class. This chemical is valued for its role as a versatile synthetic intermediate and a model compound in materials science research. It is primarily sought after by manufacturers and researchers in the pharmaceutical, agrochemical, and advanced materials sectors for developing new chemical entities and functional dyes.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of specialized herbicides, pesticides, and plant growth regulators.
• Dye & Pigment Manufacturing: Acts as a precursor for azo dyes and pigments, contributing to colorant development for textiles and plastics.
• Liquid Crystal & OLED Research: Employed as a model compound in the research and development of liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).
• Photochromic Material Studies: Utilized in academic and industrial R&D to study light-induced isomerization and develop smart materials.
• Chemical Research Standard: Provides a high-purity reference standard for analytical chemistry and method development.

Basic Information

Product Name	(E)-4,4'-Dichloroazobenzene
CAS No.	21650-51-1
Molecular Formula	C12H8Cl2N2
Molecular Weight	251.11 g/mol
Synonyms	4,4'-Dichloroazobenzene; p,p'-Dichloroazobenzene; 1,1'-(E)-Diazenylbis(4-chlorobenzene); Azobenzene, 4,4'-dichloro-; (E)-1,2-Bis(4-chlorophenyl)diazene; 4-Chloro-4'-(diazene)chlorobenzene; DCAB
EINECS	244-515-8

Quality Control

Our (E)-4,4'-Dichloroazobenzene is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.